This Duraflex TKR 5 - piece kit is ideal for car enthusiasts who want to upgrade the look of their 2009 - 2016 BMW Z4. Whether you're driving on the streets or showing off at car meets, this kit will make your car stand out. The FRP material is lightweight, which can potentially improve your car's performance. Professional installation is needed, so it's recommended to take it to a trusted auto - body shop.